Move Your Body, Feed Your Brain: The Week's Best Research on Staying Sharp

Just 45 minutes of moderate aerobic exercise, four times a week, can sharpen planning, decision-making, and other executive functions in postmenopausal women — with measurable cognitive gains appearing in as little as three to six months. That's the headline finding from a study published in the Journal of Alzheimer's Disease, and it lands at a critical moment: two-thirds of Alzheimer's cases occur in women. Researchers found the sweet spot was consistent...